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First, write out the problem:

x+2y=4

then you have to simplify it so that only y is on one side

x+2y=4

-4 -4

x+2y-4=0

-2y -2y

x-4=-2y / -2 = -1/2x + 2 = y

then, draw out a graph:

and, let's say, x=4, then you plug that into the equation, and solve for y

in this case, if x=4, then y=0, so one of the points would be (4, 0)

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Q: How do you graph the equation x plus 2y equals 4?
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